How to connect an inverter to a hard wired shed - off grid

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  • ertoc
    Junior Member
    • Mar 2014
    • 3

    #1

    How to connect an inverter to a hard wired shed - off grid

    I have an off-grid Whistler 3000W inverter that has 3 extension cord outlets (standard type). I've hard wired the shed (off grid and not connected to house panel/circuit) with some lights/switches and a few outlets.

    How to I get the extension cord to input into the simple hard-wiring? Driving me nuts.

    Inlet box? Suicide cable/daisy?

    Any help is appreciated. Low load draw on all the hard wiring so not worried about amps/volts/watts, etc.

    ertoc - CA.
  • Naptown
    Solar Fanatic
    • Feb 2011
    • 6880

    #2
    You could do it with an extension cord and a 120V RV power inlet
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    • inetdog
      Super Moderator
      • May 2012
      • 9909

      #3
      You could also simply wire the male half of an extension cord direct to the panel since you will never have to worry about power being fed back from house into the disconnected male cord end. The suicide cord is a really bad idea because the panel end could be unplugged leaving the inverter voltage on the prongs.

      But 3000W at 120 volts is more than 20 amps, so the inverter output either is 120/240 or has more than one separately fused output receptacle circuit.

      If you have used a 120/240 volt panel to wire up the house, then the situation of needing multiple cords or plugging into a single 120/240 twist-lock connector on the inverter really requires a hands-on look by someone who knows electricity and wiring (like an electrician.)
      SunnyBoy 3000 US, 18 BP Solar 175B panels.

      Comment

      • ertoc
        Junior Member
        • Mar 2014
        • 3

        #4
        Inverter to hard wire - off grid

        Originally posted by Naptown
        You could do it with an extension cord and a 120V RV power inlet
        Thank you sir. That looks like the solution.

        Comment

        • ertoc
          Junior Member
          • Mar 2014
          • 3

          #5
          Inverter to hard wire off grid

          Originally posted by inetdog
          You could also simply wire the male half of an extension cord direct to the panel since you will never have to worry about power being fed back from house into the disconnected male cord end. The suicide cord is a really bad idea because the panel end could be unplugged leaving the inverter voltage on the prongs.

          But 3000W at 120 volts is more than 20 amps, so the inverter output either is 120/240 or has more than one separately fused output receptacle circuit.

          If you have used a 120/240 volt panel to wire up the house, then the situation of needing multiple cords or plugging into a single 120/240 twist-lock connector on the inverter really requires a hands-on look by someone who knows electricity and wiring (like an electrician.)
          INETDOG - thanks - hadn't considered the 'voltage on the prongs' - I think I'll look towards Naptown's suggestion of an RV power inlet to make the connection.

          The 3K watt inverter is overkill - most of the use the system will get is intermittent power tool use and some lighting - can always grow into the 3K in the future. I can run 2 gal compressor, circular, chop saws, overnight lighting, etc. - just looking to get away from the extension cords.

          All good.

          Appreciate the response.

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